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@ARTICLE{Zimmermann:839986,
author = {Zimmermann, Markus and Abbas, Zaheer and Dzieciol,
Krzysztof and Shah, N. J.},
title = {{A}ccelerated parameter mapping of multiple-echo
gradient-echo data using model-based iterative
reconstruction},
journal = {IEEE transactions on medical imaging},
volume = {37},
number = {2},
issn = {1558-254X},
address = {New York, NY},
publisher = {Institute of Electrical and Electronics Engineers,},
reportid = {FZJ-2017-07556},
pages = {626 - 637},
year = {2018},
abstract = {A new reconstruction method, coined MIRAGE, is presented
for accurate, fast, and robust parameter mapping of
multiple-echo gradient-echo imaging; the basis sequence of
novel quantitative MRI techniques such as water content and
susceptibility mapping. Assuming that the temporal signal
can be modeled as a sum of damped complex exponentials,
MIRAGE performs model-based reconstruction of undersampled
data by minimizing the rank of local Hankel matrices. It
further incorporates multi-channel information and spatial
prior knowledge. Finally, the parameter maps are estimated
using nonlinear regression. Simulations and retrospective
undersampling of phantom and in vivo data affirm robustness,
e.g., to strong inhomogeneity of the static magnetic field
and partial volume effects. MIRAGE is compared to a state of
the art compressed sensing method, L1-ESPIRiT. Parameter
maps estimated from reconstructed data using MIRAGE are
shown to be accurate, with the mean absolute error reduced
by up to 50 percent for in vivo results. The proposed method
has the potential to improve the diagnostic utility of
quantitative imaging techniques that rely on multipleecho
gradient-echo data.},
cin = {INM-4 / INM-11 / JARA-BRAIN},
ddc = {610},
cid = {I:(DE-Juel1)INM-4-20090406 / I:(DE-Juel1)INM-11-20170113 /
$I:(DE-82)080010_20140620$},
pnm = {573 - Neuroimaging (POF3-573)},
pid = {G:(DE-HGF)POF3-573},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29408790},
UT = {WOS:000424467000027},
doi = {10.1109/TMI.2017.2771504},
url = {https://juser.fz-juelich.de/record/839986},
}